Question

вычислить ((2+15^0.25)(2-15^0.25))^(-1)*(5^0.5-3^0.5)

Answer 1

=(4-15^1/2)^(-1)*(5^0.5-3^0.5)=

=1(16-15)^0.5*(5^0.5-3^0.5)=

=1/1^ 0.5*(5^0.5-3^0.5)=

=((5-3)/1)^0.5=

=2^0.5

!Ответ корень из двух!